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Finding the Fourth Proportional to 7,026.91, 10,462.05 and 6,928.80

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Solution

The fourth proportional to 7,026.91, 10,462.05 and 6,928.80 is: 10,315.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,026.91 : 10,462.05 = 6,928.80 : x
  2. Step 2: Convert to fraction form
    7,026.91/10,462.05 = 6,928.80/x
  3. Step 3: Cross multiply
    7,026.91x = 10,462.05 × 6,928.80
  4. Step 4: Simplify right side
    7,026.91x = 72,489,382.41
  5. Step 5: Solve for x
    x = 72,489,382.41/7,026.91
  6. Step 6: Final answer
    x = 10,315.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.